Arch Linux install script to generate output suitable for addition to an fstab file. More information: https://manned.org/genfstab.8.
genfstab -L path/to/mount_point
genfstab -U path/to/mount_point
genfstab -U /mnt >> /mnt/etc/fstab
genfstab -U path/to/mount_point | sudo tee -a /etc/fstab